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The Middle Three
People → India → Sivakumar Sundaram

People · India

Sivakumar Sundaram

3×3 · top 34.7% of 284,439 all-time · competing since January 2014 · 2014SUND01

Sivakumar Sundaram has been competing for 13 years. His best event is the 3×3: a personal-best single of 18.22, set at Cubing at Vivira A 2026, puts him in the top 34.7% of the 284,439 people who have ever been ranked in the event, and 4,795th in India. Across 37 competitions since January 2014, he has put 277 official solves on the record across four events. Solve to solve, his 3×3 times vary about 14% around a typical one; 74% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 1:19.19 in January 2014 to 18.22, a 77% improvement. Sivakumar has entered 37 competitions, more competitions than 99% of everyone who has ever competed.

3×3
best event — top 34.7% of 284,439 all-time
18.22
signature single · Cubing at Vivira A 2026
277
official solves on the record
14%
solve-to-solve spread · wider than 74% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingIndia
3×318.2221.68
top 34.7%4,795 / 20,018
2×25.3713.55
top 43.9%4,136 / 12,146
Pyraminx19.7026.77
top 92.5%7,552 / 8,934
Skewb1:11.37—
early days — 3 solves3,537 / 3,524

Percentile against all competitors ever ranked in each event, a fairer measure than raw rank, because the pools differ by a factor of ten.

The line so far

Shaastra Cube Open 2014: 1:19.19Carte Blanche Kube Open 2014: 1:14.22CMI Fiesta Open 2014: 59.20Aaruush Cube Open 2014: 30.25Shaastra Cube Open 2015: 31.97Indian Nationals 2015: 25.67Brain Studio Cube Open 2015: 21.75REC Cube Challenge 2015: 25.00Shaastra Cube Open 2016: 24.36SSN Cube Open 2016: 24.50Shaastra Cube Open 2017: 19.44Carte Blanche Kube Open 2017: 19.04SRM Cube Open 2017: 19.27Grand Cube Open 2017: 18.83Shaastra Cube Open 2018: 21.40Carte Blanche Kube Open 2018: 19.52SRM Cube Open 2018: 19.05IIITDM Cube Open 2018: 19.38Phoenix C3 Open 2018: 21.09Shaastra Cube Open 2019: 19.16CMI Tessellate Cube Open 2019: 20.67Thoothukudi Cube Open 2022: 23.93Cubing Saturday in SSN 2022: 22.15CMI Tessellate Cube Open 2023: 19.97SSN Cube Saturday 2023: 21.02CMI Tessellate Cube Open 2024: 22.47Tamil Nadu Cube Open 2024: 21.49Rajalakshmi Engineering College Cube Open 2024: 23.01Tamil Nadu Cube Challenge 2024: 20.77Back to Cubing Madras 2025: 19.81SSN Cube Open 2025: 21.73Play Extreme Cubing A 2025: 20.99South India Cube Championship 2025: 20.76VIT Cube Open 2025: 21.08SSN Cube Challenge 2025: 21.67Kalanjiam Cubing Challenge 2025: 19.95Cubing at Vivira A 2026: 18.2218.221:19.194 Jan 20149 May 2026

Best single per competition, 3×3. Faster is higher — the axis is the right way up.

The story so far

Competitions

Reading this page: a single is one solve's time · an average is the middle three of five solves, best and worst discarded · a PB is a personal best · a DNF (did not finish) is an attempt with no valid result: a popped piece, an unsolved face, an over-limit memorisation · top X% compares against everyone ever ranked in that event, which is fairer than raw rank because event pools differ tenfold.

The circuit

The people whose scorecards keep turning up next to his.

Next targets

  • A sub-15 3×3 single — 69,493 people have one; it is 3.22 away.
  • A sub-5 2×2 single — 73,413 people have one; it is 0.37 away.

Targets move as he improves.